BOURBONNAIS, IL - AUGUST 06: Roy Williams #11 of the Chicago Bears works out during a summer training camp practice at Olivet Nazarene University on August 6, 2011 in Bourbonnais, Illinois. (Photo by Jonathan Daniel/Getty Images)(Photo by Jonathan Daniel/Getty Images) Roy Williams #11 of the Chicago Bears works out during a summer training camp practice at Olivet Nazarene University

(CBS) Bears wide receiver Roy Williams practiced without limitations Thursday as the Bears prepare to take on the Packers for an NFC North showdown.

Williams, who signed with the Bears as a free agent this offseason, missed last week’s loss to the Saints after straining his groin in the season opener against Atlanta. Williams exited his first game in a Bears uniform after catching four passes for 55 yards.